×Pending Replies will be live across Kinja on Thursday, August 21. Read more.

Facebook's Snapchat Clone Just Got a Little Less Ridiculous

Slingshot, Facebook's second swing at Snapchat-like ephemera, may be pretty to look at, but until now, it's suffered from one huge problem: It didn't make a lick of sense. Thankfully, Facebook's finally remedied that by getting rid of its absurd reply-to-unlock feature. In other words—you can actually use it to have a… » 8/01/14 9:14am 8/01/14 9:14am

Slingshot's Designers Say You're Using It Wrong

Facebook's new app, Slingshot, is confusing. The premise behind it is that you can send images to your friends—but they won't be able to see your image until they send one back to you. As a messaging service, it's flawed. But, according to the app's designers, it's not a messaging service. It's something entirely… » 6/23/14 4:00pm 6/23/14 4:00pm

An Extracurricular And Deadly Use For Pencils

I wouldn't say using pencils as zombie-killing projectiles would be my first thought, but if you do enough slingshot-ing I guess it makes sense that you would eventually run up against office supplies as a source of inspiration. Joerg updates his pencil shooter to be crank operated and more efficient. It can shoot… » 10/06/13 8:30pm 10/06/13 8:30pm

Alien Probes Could Already Be In Our Solar System According To Math

If you've been trying to recall what makes theoretical math super fun, here's a reminder. Researchers from the University of Edinburgh published a paper in the International Journal of Astrobiology that examines how long it would take Voyager-sized probes to bop around the Milky Way and eventually encounter our solar… » 7/21/13 11:30am 7/21/13 11:30am

The Slow-Motion Physics of Hand-Held Slingshots

We're big fans of the Smarter Every Day and Slingshot YouTube channels—so it's always nice when Destin and Joerg, their respective owners, get together. This time round, they use high-speed photography to take a close look at the physics of hand-held slingshots—and work out how to make them as destructive as possible. » 7/20/12 5:23am 7/20/12 5:23am